From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <systemtap-return-7343-listarch-systemtap=sources.redhat.com@sourceware.org>
Received: (qmail 6551 invoked by alias); 2 Oct 2007 15:19:42 -0000
Received: (qmail 6506 invoked by uid 48); 2 Oct 2007 15:19:28 -0000
Date: Tue, 02 Oct 2007 15:19:00 -0000
Message-ID: <20071002151928.6505.qmail@sourceware.org>
From: "mhiramat at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sources.redhat.com
In-Reply-To: <20071002142236.5085.wcohen@redhat.com>
References: <20071002142236.5085.wcohen@redhat.com>
Reply-To: sourceware-bugzilla@sourceware.org
Subject: [Bug runtime/5085] print_backtrace() and  backtrace() not working in timer.profile probe on 2.6.23-rc8 kernel
X-Bugzilla-Reason: AssignedTo
Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <systemtap.sourceware.org>
List-Subscribe: <mailto:systemtap-subscribe@sourceware.org>
List-Post: <mailto:systemtap@sourceware.org>
List-Help: <mailto:systemtap-help@sourceware.org>, <http://sourceware.org/lists.html#faqs>
Sender: systemtap-owner@sourceware.org
X-SW-Source: 2007-q4/txt/msg00005.txt.bz2


------- Additional Comments From mhiramat at redhat dot com  2007-10-02 15:19 -------
(In reply to comment #0)
> backtrace from timer.profile:
> 
>  0x001d3392
> 
> --------
> 
> the profile stack is 0x001d3392
> 
> --------
> 
>  0x001d3392
> 

It was reproduced on my machine with 2.6.22.9-91.fc7.
timer.profile will be invoked when a user program is running, and backtracing
fails on user stack.
I think we need to introduce a function to check whether the probe is in the
kernel or in user mode.


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=5085

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.